The Carnegie Science Center has received a $7.5 million gift from PPG and the PPG Foundation – the largest in the science center’s history. The donation will go towards the construction of the PPG Science Pavilion, which is scheduled for completion in June 2018.

The first day of summer might make one think of a sunny stroll along the river or a fresh lunch on an outdoor patio. At the Carnegie Science Center, it’s snowballs.

Each year, the science center hosts its annual “Snowball Launch,” to ring in the warm season. Visitors are encouraged to bring their own snowball (likely saved in the back of the freezer since winter) to receive free admission and throw them via slingshot into the Ohio River.

Two years ago, Sean Ferguson, of Hampton Township, was walking through a parking lot at the University of Dayton. He said the next thing he remembers is waking up in UPMC Mercy Hospital.

Lightning had struck the ground and threw Ferguson into a car, breaking his jaw. The electric current from the lighting ran through his body and sent him into cardiac arrest. Several students responded, but only one knew how to perform CPR until an ambulance arrived.

It's a sad day for the Social Club gang, this is our final episode. We're so grateful to everyone who's listened over the last few years and hope to share Pittsburgh happenings in a new format one day, too.

So, for one last time, 90.5 WESA's Sarah Kovash, Josh Raulerson and Rachel Carlson of Yelp Pittsburgh fill you in on what's happening this weekend.

The city of Zumala sits on the Nile Delta. Edible mushrooms feed on plastic waste and plants filter the water for residents and businesses. Suspended tubular trains carry the city’s 300,000 people from place to place, high above the buildings.

The fictional city cost less than $100 to build and was designed by 10 middle-schoolers.

It may be the middle of winter, but that doesn’t mean you can’t find anything fun to do! WESA’s Sarah Kovash, Josh Raulerson and Rachel Carlson of Yelp Pittsburgh have you covered for a weekend full of fashionable – and tropical outings.

Humans have had a greater impact on the Earth than any other species in history.

“I mean, you can see it from space,” said Steve Tonsor, director of science and research at the Carnegie Museum of Natural History. “If you see images from space at night, you see all the lights of human activities. That is really a sign of our consuming fossil fuels and turning them into light energy. If you see the images from space during the day, you see the vast acreages of land that humans have manipulated.”

We’re back from the holiday! WESA’s Sarah Kovash, Rachel Carlson of Yelp Pittsburgh and Josh Raulerson of the PA Environmental Council took a two-week hiatus to stuff their faces, find the best pizza costumes and relax. So now, we’ve got all the local happenings to get you ready for the holidays … or holidaze, as Rachel puts it.

Election Day is over and you deserve a fun weekend. How about some chocolate, drinks and shopping? WESA’s Sarah Kovash, Yelp Pittsburgh’s Rachel and Josh Raulerson are here to fill you in on the weekend activities you need to know!

The truth is out there and WESA’s Josh and Sarah are putting on their Mulder and Scully hats to let you know all the weird things happening in Pittsburgh. They want you to join them in their investigations of the weird and paranormal. Do you choose to join them? They are without the help of Yelp Pittsburgh’s Rachel this week but no fears, WESA’s Megan Harris is here to join you in tracking down the strange and odd this weekend.

The Perseid meteor shower is back for its annual mid-summer show, but with more force this year.

Stargazers can catch a glimpse of 100 to 150 meteors – remnants of the Swift Tuttle comet – flying by Earth every hour when celestial activity peaks between late Thursday evening and early Friday. The annual pass usually takes place each year from mid-July to mid-August.

“All of these little particles of rock burn up in our atmosphere and put on a pretty spectacular show,” said Charissa Sedor, planetarium producer of the Carnegie Science Center’s Buhl Planetarium.

Nothing divides us more than the debate over if cargo shorts are acceptable apparel or not. We here at Social Club are ready to put a stop to that debate and say once and for all that, fine, you can wear cargo shorts. No more judgment. WESA’s Josh and Sarah and Yelp Pittsburgh’s Rachel are here to let you know all the places you can wear your cargo shorts this weekend.

Did you know nearly 42 percent of Americans don’t use their vacation days? We are constantly working and it’s hard to fit in some “me” time. If you're feeling stressed at the office and need to wind down a bit, this week’s Social Club is for you. WESA’s Josh and Sarah and Yelp Pittsburgh’s Rachel are here to fill you in on all the weekend’s relaxing activities.

The Fab Lab at the Carnegie Science Center is using its 3-D printer to make prosthetic hands. The “e-Nable the Future” program allowed visitors to take part in a workshop utilizing this technology. Essential Pittsburgh producer Marcus Charleston attended the workshop.

The Remake Learning series is a collaboration of 90.5 WESA, WQED, Pittsburgh Magazine and NEXTpittsburgh.

It’s National Burger Month. Yes, it is also National Bike Month. America is really into theming months right now. That’s completely fine with us, because it inspires exciting events all around the city. WESA’s Josh and Sarah and Yelp Pittsburgh’s Rachel are here for all your burger-eating needs.

Carnegie Science Center visitors can check out the USGA's "American Golf History-Coming To Life" experience in Highmark Sportsworks. We'll talk with Eric Steighner about the custom golf simulator that allows visitors to try hitting a golf ball with period-specific clubs from the 1930's to the modern era.

Happy Tax Day. That refund check is in the mail so now it is time to put it to good use by going out and enjoying all the fun events in Pittsburgh. WESA’s Josh and Sarah and Yelp Pittsburgh’s Rachel are here to tell you how to spend that cash.

Order! Order! It’s time for Social Club. If you are like WESA’s Josh and Sarah and Yelp Pittsburgh’s Rachel, you have been watching way too much Netflix, so it’s time to go out and explore all the fun things going on in the city. You can always watch Making a Murderer and Jessica Jones when you get back.

The USS Requin will be open for tours again on Saturday after being closed for over two months for repairs. The submarine was commissioned in April of 1945 in the closing days of World War II. This year marks the 70th anniversary since it began its service and the 25th year since it arrived at the Carnegie Science Center in 1990. We'll take a tour with submarine coordinator Maria Renzelli.

Peter Muller-Munk, a German immigrant to Pittsburgh, rose from being a relatively obscure silver smith to one of the top designers of consumer products in the 20th century. The Carnegie Museum of Art will be telling his story in a new exhibit titled “Silver to Steel.” Rachel Delphia, co-curator of Silver to Steel, joins us to talk about the exhibit and the works of Muller-Munk.

The Carnegie Science Center has selected ten local school districts to become partners with its Carnegie STEM Excellence Pathway program.

The ten-member “cohort” consists of the Allegheny Valley, Avonworth, Baldwin-Whitehall, Bethel Park, Elizabeth Forward, Montour, Plum Borough, Shaler Area and West Allegheny school districts, as well as the A.W. Beattie Career Center.